The Company completed its annual impairment assessments for its IPR&D asset and goodwill as of October 1, 2013 and 2012, respectively, and determined that the fair value of the IPR&D asset and goodwill was in excess of carrying value. The Company has determined its IPR&D assets and $5.5 million of goodwill is included in the Biosciences therapeutics reporting unit, a component of the Biosciences business segment. The remainder of goodwill, $8.5 million, is related to the HPPD acquisition and is included in the Company's Biodefense segment. The Company performed a quantitative assessment of goodwill associated with the Bioscience segment and a qualitative assesment of goodwill associated with the Biodefense segment.

During the year ended December 31, 2012, Pfizer Inc. ("Pfizer") terminated its development programs with respect to the Company's SBI-087 product candidate. The Company considered this termination a potential indicator of impairment of the related SBI-087 IPR&D asset, and assessed the fair value of this asset. As part of the assessment, the Company considered the impact of Pfizer's decision, along with the Company's decision to no longer pursue further development of this asset due to reduced overall probability of success and increased development costs for the product candidate. As a result, the Company recorded an impairment charge of $9.6 million during the year ended December 31, 2012, which represented the entire carrying value of the SBI-087 IPR&D asset. This charge is classified in the Company's statement of operations as impairment of in-process research and development, within the Company's Biosciences segment.